Select the correct answer. Consider these functions: f(x) = 3x3 + 8x − 2 k(x) = 4x What is the value of k(f(x))? A. 192x3 + 8x − 2
B. 192x3 + 32x − 2
C. 12x3 + 32x − 2
D. 12x3 + 32x − 8

Astore sells two types of radios. one type sells $87 and the other for $119. if 25 were sold and the sales were $2495, how many of the $87 radios were sold a) 5 b) 20 c) 15 d)10

Question 3 (essay worth 10 points) (03.06 mc) part a: max rented a motorbike at $465 for 5 days. if he rents the same motorbike for a week, he has to pay a total rent of $625. write an equation in the standard form to represent the total rent (y) that max has to pay for renting the motorbike for x days. (4 points) part b: write the equation obtained in part a using function notation. (2 points) part c: describe the steps to graph the equation obtained above on the coordinate axes. mention the labels on the axes and the intervals. (4 points)

3x + 4y = 5 x- 3y = -7 solve by substitution